GitLab

Updates for ZeRO stage 2 + ZeRO stage 1 w. RS
Co-authored-by: Tunji Ruwase <olruwase@microsoft.com>
Co-authored-by: Samyam Rajbhandari <samyamr@microsoft.com>
Co-authored-by: Shaden Smith <ShadenTSmith@gmail.com>
Co-authored-by: Elton Zheng <eltonz@microsoft.com>
Co-authored-by: Shaden Smith <Shaden.Smith@microsoft.com>
Co-authored-by: yuxionghe <yuxhe@microsoft.com>
Co-authored-by: Arash Ashari <arashari@microsoft.com>

* Ported DeepSpeed overview.

* Renamed subsection

* Formatting table of contents

* initial import of Megatron tutorial

* Grammatical edits, formatting, and paths.

* formatting and data download instructions

* formatting tutorial

* formatting tutorial

* formatting tutorial

* formatting tutorial

* formatting tutorial

* formatting tutorial

* new perf chart

* removing TODO

* adding pointer to tutorial

* edits

* azure to low bandwidth
Co-authored-by: Samyam Rajbhandari <samyamr@microsoft.com>